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ChemicalBook CAS DataBase List 7,8-DIMETHOXY-2,3,4,5-TETRAHYDRO-2-BENZAZEPINE
95469-38-8

7,8-DIMETHOXY-2,3,4,5-TETRAHYDRO-2-BENZAZEPINE synthesis

13synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 6 steps
1.1: acetic acid / ethanol / 23 h / Heating
1.2: 74 percent / NaBH4 / ethanol / 0.5 h / 0 - 20 °C
2.1: 100 percent / Ac2O / 1 h / 70 °C
3.1: 84 percent / NaIO4 / H2O; methanol / 5 h / 20 °C
4.1: 56 percent / TFAA / benzene / 4 h / 20 °C
5.1: 80 percent / NiCl*6H2O; NaBH4 / methanol; tetrahydrofuran / 0.33 h / 0 °C
6.1: 98 percent / NaOH / ethanol; H2O / 1 h / Heating

References:

Horiguchi, Yoshie;Saitoh, Toshiaki;Terakado, Sachiko;Honda, Konomi;Kimura, Tomoko;Toda, Jun;Sano, Takehiro [Heterocycles,2001,vol. 54,# 2,p. 967 - 984]